High for mainly dry and settled conditions on Wednesday and Thursday. Medium for details on Tuesday and Friday and Low on Saturday.
Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.
Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.
Storm force winds (gusts over 70mph) make walking very strenuous with any mobility virtually impossible over exposed ground. Where these conditions occur there is a high risk of being blown over and even standing may be impossible at times with a risk of being blown off one’s feet. Basic tasks such as using a map, eating, putting on extra clothing or communication become extremely difficult away from any shelter.
Wind significantly lowers the ‘feels-like’ temperature relative to the actual temperature, with even moderate winds significantly adding to the chilling effect. Strong winds can result in a severe and debilitating wind chill many degrees below the actual temperature. This effect will be enhanced in rain or wet snow. Without protection, prolonged exposure could result in frost nip or frostbite on exposed parts of the body and/or hypothermia.
Mostly cloudy with occasional rain and drizzle. Gales over the tops and feeling cold.
|Chance of precipitation|
|1300m||SE 50 60||S 57 70||S 42 54||SW 39 50||SW 38 50||SW 41 53|
|900m||SE 31 39||S 40 52||S 33 44||SW 30 40||SW 31 42||SW 33 45|
|600m||S 46 54||S 53 64||S 34 43||SW 29 39||SW 30 39||SW 32 42|
|300m||S 22 34||S 27 39||S 17 28||SW 15 29||S 15 28||SW 16 31|
|Glen||S 8 22||S 18 38||S 10 25||SW 11 29||SW 9 27||SW 11 31|
Low cloud at first, most persistent across the Trossachs. This clears, turning brighter for a time. However rain and low cloud spread into Mull by mid-morning, then to all ranges by around midday. Turning drier and brighter in the afternoon, but a few showers in the evening, mainly near the west coast.
20% at first, extensive cloud with bases 600m or less, but more broken over Lochaber. Becoming 70% for a time as cloud lifts around late morning. Falling to 10% by the afternoon, cloud bases typically 500 to 700m. Becoming 70% during the evening as the cloud begins to lift and break.
Poor for much of the day, but improving to good for a few hours around mid-morning. Becoming mostly good in the evening.
Feeling cold over the tops with a significant wind chill. Winds generally around 10 mph lighter across Loch Lomond and the Trossachs.
Rather cloudy in the early hours with a few showers, wintry over the tops. Mainly dry by dawn then a bright day with occasional sunny spells, and a few well scattered showers, wintry over the tops. Dry with well broken cloud in the evening and temperatures quickly falling.
West 20 to 25mph gusts 35mph, but gusts 50mph during the early hours. Winds easing later in the day.
Typically 70%, occasional or patchy cloud with base 900m or higher, but 30 to 50% during the early hours, more extensive cloud with bases around 600m.
Mostly very good or excellent, but moderate or poor in any showers.